Heel-breasting machine.



E. A. WEESTER.

HEEL BRBASTING MACHINE.

APPLICATION FILED MAY 8, 1911.

1 1 8$fi% Patented Mar. 23, 1915.

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'IHE NORRIS PETERS 60., PHOTC-LITHO., WASHINGTON n. c.

E. A. WEBSTER.

HEEL BREA$TING MACHINE.

APPLICATION FILED MAY 8.1911.

1Q. J. 3@,%%Um I Patented Mar. 23, 1915.

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IHE NORRIS PETERS (20.. PHOTOVLITHOY. WASHINGTON D. C.

EDWIN A. WEBSTER, 0F GROVELAND, MASSACHUSETTS, ASSIGNOB T0 'HAVIERHIL'LSHOE MACHINERY COMPANY, OF HA'VERHILL, IJIAS$ACHUSETTS, A CORPORATION OFMAINE.

HEEL-BBEASTING MACHINE.

Specification of Letters Patent.

Patented Mar. 23, 1915.

To all whom it may concern:

Be it known that I, EDWIN A. VVEBSTER, a citizen of the United States,residing at Groveland, in the county of Essex and State ofMassachusetts, have invented an Improvement in Heel-Breasting Machines,of which the following is a specification.

This invention relates to certain improvements inheel-breastingmachines, particularly applicable to that type ofmachinesin which a depending breasting-knife is provided, and either the jack,or the knife is moved vertically, to perform the br'easting operation,and in which the jack is also adapted to be moved forwardly, so that theshoe may be placed thereon, and may then be moved rearwardly intobreasting position. 1

In order that the requirements of the trade may be met, it is necessarythat the breast of the heel be straight, and if it is not cut straightby the breasting-knife it must be made so on the heel scouring ma ch ne.

In breasting machines of the type above referred to, whether the knifeis made to reciprocate laterallv. as in the machine of my prior Patent#981,506, dated January I 10, 1911, or is held stationary laterally, asis customary in other machines, it is necessary to bevel the knifealmost wholly on the front side, or side next the chip, and this une ualbevel strongly tends to cause the knife to be deflected from a straightcourse into the heel and cut the breast on an inward slant, or curve,the thicker the chip which is removed, the greater being the tendency ofthe knife to run inward, and this tendency generally being the greatestwhen the knife is close to the shank, as the chip .is usuallv thickestat this point. As the knife is held from moving laterally rearward, theresult of this tendency. therefore, is to cause the shoe, andconsequently the jack on which it is supported, to be moved forwardly,or toward the operator, and, in machines pre viously employed, theoperator usually attempts to prevent this movement by pressingrearwardly on the shoe or jack. Inasmuch as the force with which theshoe, or jack is pressed forwardly by the knife is usually greater thanany counteracting force which may be exerted by the operator, the resultis that heels are frequently breasted imperfectly in the manner abovedescribed. Moreover, if the operator presses the jack rearwardly withtoo much force, he is likely to force the jack back beyond the breastingposition, which would also be objectionable. The result secured in thisparticular, thus,

to a large extent, depends on the ability of the operator to hold the.shoe in the desired position. The tendency of the knife to be deflectedinto the heel, as before described, also tends to throw the toe of theshoe or last upwardly, and it frequently happens that the shoe is thrownupwardly to such an extent that it is pulled from the jack, thus notonly causing serious delay and chilicultv, but also frequently causingthe heel to be damaged to such an extent that a new heel must beapplied.

As it is frequently necessary to adjust the jack to difierent positionsfor different stvles of shoes, the utmost freedom and facility ofadjustment of the jack is necessary. at the time it is brought intobreasting position, as the operation must be rapidly performed.

The object of my invention is to provide a breasting machine of theabove described tvne with means whereby the utmost facility ofadjustment of the jack is permitted, to bring the shoe into breastingposition, and in connection therewith, to pro vide means for preventingthe jack from moving horizontally during the breasting operation, sothat, as the operation is performed the shoe cannot be moved out ofposition by the knife, and the knife will be caused to cut the breastperfectly straight, sothat there will be no necessity of straighteningthe heel-breast by a subsequent operation. I accomplish this object byproviding means for automatically locking the jack against horizontalmovement at the beginning of the breasting operation, and for holding itin locked position until said op eration is finished, the jack beingunlocked on the return movement.

For a complete understanding of my invention reference is made to theaccompanying drawings, in which Figure 1 is a side elevation of aheelbreasting machine-made according to any invention. Fig.2 is a rearview of the-breasting mechanism of the machine on an enlarged scale, andpartly in section on line 2-2 of Fig. 1. Fig. 3 is asimilar view showingthe parts in a different position, and, Fig. 4 is a detail view of thelocking device.

As shown in the drawing, the base a is provided with a head-b, in whichthe depending breasting-knife c, which is reciprocated as described inmy said prior patent, mounted,anda heel holder d,,is provided itohol'd'the heel from tipping or vibrating laterally,jand is mounted tomove vertically on the rodsfefas also described in my said "prior"patent. 1 d

The jack 7, shown, is'of' a form which is especially adapted forbreasting the shoe while on the last, but the particular form of jackemployed is not'material.

A slide,'or carrier, g, is mounted to move vertically in the frame'andthe jack f is {mounted 'on'an arm h, arranged to swing forwardlyan d'rearwardl y on a pivot 'i sef c'ure'din the 'slideg, so as to carry'thejack horizontally into and out of breasting position, in the well-knownmanner.

The "arm h is provided atone side with a 'longitutlinallycurved T-shapedhead or projection h, which is adapted to move in a groove or slotformed in a thickened portion of the slide 9, at its upper end, both the"projectionnnd groovebeing curved on an are having the pivot 71 as itscenter.

'An operating-lever j is mounted 'on a pivot 7c,' 'supported by abracket on the 'ba'se,-'said'leverjbeing provided with an extensibleend' portion "7" having a straight face y' extending nearly at rightangles thereto and another straight face j arranged at a slightly obtuseangle with relation tosaid face 7' The mainrportion of the "lever 'jbeneath its pivot is "also provided "'withastraight face 9' arrangedparallel to the face j and'an engaging end portion j.

A locking pin m is mounted to move lon- -'"git-'udinally in thethickenedupper end por- "tion of the slide 9, and at right angles'thereto, sothat it may enter the T-shaped groove 9 therein, andits end may engagethe adjacent face" of the head hQ-and a vertical shaft 'n, havinga cam non its lower end. is rotatablyinounted in the slide, said cambeingari'angedtb engage the pin m and move the same into engagement withthe head it, "when said shaft is rotated, to lock the arm it againstswinging movement. The shaft n hasa finger 0 whichextends horizontally"from the upper end thereof in position to be engaged by the lower endportion 9' of the lever j, so that when said lever j is swung onitspivot toward the finger 0, the shaft n will be rotated to movethelpin m to locking 'p ositien. A spring gacts to move" the lever jaway from finger 0.

A friction'roll s is mounted on the heelholder cl, said roll beingarranged to engage and bringing the heel up into engagement with theholder d and breasting-knife c successively, as shown in Fig. 2. Theholder d is lifted with the jack, during the entire upward movement ofthe jack after the heel engages the holder, and, as said holder beginsto move upward the roll a thereon will be forced against the face j ofthe lever extension j, and will immediately cause the lever to be swungsulliciently to cause its end portion 7' to engage finger o and rotatethe shaft n to move the locking pin minto locking engagement with thehead it, 'as

"shown in F1g. 3, so that the jack is positively held against swingingmovement. When the lever j is in locking position, its faces 7' andjtwill be vertical, so that, during the further upward movement of theholder d, the parts will be held in locked position, without obstructingthe upward movement of the jack. As the jack is lowered theoppositemovement will take place, permitting the spring Q to swing the lever 7'out of engagement with finger 0, so as to unlock the jack, and permit itto be swung forward.

It will thus be seen that the means for locking and unlocking the jackin no way interferes with the normal operation of the machine, as thejack is not locked until the shoe is actually lifted to thebreasting-knife and is unlocked at the end of the return movement.

I claim 1. In a heel-breasingmachine, two operating members comprising abreasting-knife and a jack,said jack being movable hori zontally to andfrom breasting position, a treadle for vertically reciprocating one ofsaid members to perform the breasting iaeaaao tion, a treadle forvertically reciprocating one of said members to perform the breastingoperation, and an independent locking device disposed to be actuatedduring the initial portion of the acting movement of said verticallyreciprocating member to lock said jack against horizontal movement andto hold it locked during the latter part of the acting movement,substantially as described.

3. In a heel-breasting machine, a depending breasting-knife, a jackmovable horizontally into breasting position beneath the knife andhaving means for moving the same vertically to perform the breastingoperation, a locking device for holding the jack against horizontalmovement when in breasting position, and means to move said lockingdevice to locking position actuated by the jack during the initialportion of its lifting movement, substantially as described.

l. In a heel-breasting machine, a depending breasting-knife, a jackmovable horizontally into breasting position beneath the knife andhaving means for moving the same vertically to perform the breastingoperation, and a locking device, disposed to be actuated by a verticalmovement of the jack, for holding the jack against hori zontal movement,substantially as described.

5. In a heel-breasting machine, a depending breasting-knife, a jackmovable horizontally into breasting position beneath the knife, andhaving means for moving the same vertically to perform the breastingoperation, and a locking device disposed to be .actuated by the jackduring the initial portion of its upward movement to lock the jackagainst horizontal movement and to hold it locked during the latter partof the upward movement, substantially as described.

6. In a heel-breasting machine, a depending breasting-knife, a jackmovable horizontally into breasting position beneath the knife, alocking device for holding the jack in said position, and means forsimultaneously lifting the jack to perform the breasting operation andfor moving said locking device to operative position, substantially asdescribed.

7. In a heel-breasting machine, a depending breasting-knife, a jackmovable horizontally into breasting position beneath the knife, alocking device for holding the jack in said position, an operating leverfor said locking device, and means, actuated by the jack during theinitial portion of its lifting movement, for operatively moving saidlever and for holding said lever in operative position during thesubsequent por- Eoptea of thla patent may be obtained for tion of saidlifting movement, substantially as described.

8. In a heel-breasting machine, a depending breasting-knife, a jackmovable horizontally into breasting position beneath the knife, avertically movable carrier, on which said jack is mounted, a lockingdevice mounted on said carrier, lifting means for said carrier, andmeans actuated by said carrier when it is lifted for moving said lockingdevice to lock thejack in breasting position, substantially asdescribed.

9. In a heelbreasting machine, a depending breastingknife, a jackmovable horizontally into breasting position beneath the knife, andhaving means for moving the same vertically to perform the breastingoperation, a locking device movable with the jack for holding the jackin breasting position, a lever mounted independently of the jack, aheel-holder vertically movable with the jack, and means carried by saidholder for moving said lever to move said locking device to lock thejack, substantially as described.

10. In a heel-breasting machine, two operating-members comprising abreastingknife and a jack, said jack being movable horizontally to andfrom breasting position, means for vertically reciprocating one of saidmembers to perform the breasting operation, a heel-engaging devicedisposed adjacent the cutting edge of said knife in position to engagethe heel approximately at the time it is engaged by the knife, meanspermitting said engaging device to yield vertically with relation to theknife, and means, operated by said engaging device, as it yields, forlocking the jack against horizontal movement, substantially asdescribed.

11. In a heel-breasting machine, a depending breasting-knife, a jackmovable horizontally into breasting position beneath the knife andhaving means for moving the same vertically to perform the breastingoperation, a vertically movable heelengaging device disposed adjacentthe cutting edge of said knife in position to be engaged and lifted bythe heel approximately at the time the heel is moved into engagementwith said edge, and means operated by said engaging device as it islifted for locking the jack against horizontal movement, substantiallyas described.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

EDWIN A. WEBSTER.

Witnesses:

L. H. HARRIMAN, H. B. DAVIS.

five cents each. by addressing the Gommissioner of liatenta.

Waahinatzm, D. '0.

